Nuclei in the Cosmos - IX

Session

17 Experiments and theory in nuclear astrophysics

30 Jun 2006, 15:30

CERN, Geneva

Conveners

17 Experiments and theory in nuclear astrophysics

• Thomas Rauscher (Universität Basel)

36. Role of the fission in r-process nucleosynthesis

Aleksandra Kelic (GSI)

30/06/2006, 15:30

Experiments in nuclear astrophysics

Invited

Fission can have an important influence on the termination of the r-process and on the abundances of long-lived actinides, which are relevant for determinating the age of the Universe. Fission can also influence the abundances of nuclei in the region A~90 and 130 due to the fission cycling. In order to quantitatively understand the fission role in the r process, two important pieces of...

262. Nucleosynthesis in neutrino heated matter

Gabriel Martínez Pinedo (GSI Darmstadt))

30/06/2006, 16:00

Nuclear theory in astrophysics

Invited

Independently of the still unclear explosion mechanism for core-collapse supernovae there will be matter ejected under strong neutrino fluxes. Depending of the spectral properties of both neutrinos and antineutrinos the composition of the matter goes from proton rich to neutron rich. Current supernova simulations suggest that the early ejecta is proton rich while at latter times we...

266. Studies of radioactive nuclei and their role in the cosmos

Jeff C Blackmon (for the RIBENS Collaboration, Oak Ridge National Laboratory)

30/06/2006, 16:30

Experiments in nuclear astrophysics

Invited

Radioactive nuclei play an important role in many astrophysical phenomena, particularly in stellar explosions where the rates of nuclear reactions can be much faster than the lifetimes of most radioactive isotopes. Accelerated beams of radioactive ions are being used to address uncertainties in some key reaction rates. We will review recent progress in the field, focusing on results from...